diff --git a/README.md b/README.md
index 002642c..2221a80 100644
--- a/README.md
+++ b/README.md
@@ -69,10 +69,12 @@ cat localworkspace/results/output_*.jsonl
 
 You can view your documents side-by-side with the original PDF renders using the `dolmaviewer` command.
 
-```python
-
+```bash
+python -m olmocr.viewer.dolmaviewer localworkspace/results/output_*.jsonl
 ```
 
+Now open `./dolma_previews/tests_gnarly_pdfs_horribleocr_pdf.html` in your favorite browser.
+
 
 ### Multi-node / Cluster Usage
 
diff --git a/olmocr/viewer/dolmaviewer.py b/olmocr/viewer/dolmaviewer.py
index 96c1905..41e791e 100644
--- a/olmocr/viewer/dolmaviewer.py
+++ b/olmocr/viewer/dolmaviewer.py
@@ -44,12 +44,9 @@ def process_document(data, s3_client, template, output_dir):
     source_file = metadata.get('Source-File')
 
     # Generate base64 image of the corresponding PDF page
-    if source_file and source_file.startswith('s3://'):
-        local_pdf = tempfile.NamedTemporaryFile("wb+", suffix=".pdf")
-        local_pdf.write(get_s3_bytes(s3_client, source_file))
-        local_pdf.flush()
-    else:
-        raise ValueError("Expecting s3 files only")
+    local_pdf = tempfile.NamedTemporaryFile("wb+", suffix=".pdf")
+    local_pdf.write(get_s3_bytes(s3_client, source_file))
+    local_pdf.flush()
 
     pages = []
     for span in pdf_page_numbers: